CVE-2023-29201
org.xwiki.commons:xwiki-commons-xml Cross-site Scripting vulnerability
XWiki Commons are technical libraries common to several other top level XWiki projects. The "restricted" mode of the HTML cleaner in XWiki, introduced in version 4.2-milestone-1, only escaped `<script>` and `<style>`-tags but neither attributes that can be used to inject scripts nor other dangerous HTML tags like `<iframe>`. As a consequence, any code relying on this "restricted" mode for security is vulnerable to JavaScript injection ("cross-site scripting"/XSS). When a privileged user with programming rights visits such a comment in XWiki, the malicious JavaScript code is executed in the context of the user session. This allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. This problem has been patched in XWiki 14.6 RC1 with the introduction of a filter with allowed HTML elements and attributes that is enabled in restricted mode. There are no known workarounds apart from upgrading to a version including the fix.
- Affected
- xwiki · xwiki-commons
- CVSS v3.1 NVD
- 9.0 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H - EPSS
- 1.15% chance of exploitation in the next 30 days, 66th percentile
- Published
- 2023-04-15
- Updated
- 2025-02-06
Proof-of-concept exploits (1)
- shoucheng3/xwiki__xwiki-commons_CVE-2023-29201_14-50★ · 2025-10-27
Security advisories
- xwiki/xwiki-commons/security/advisories/GHSA-m3jr-cvhj-f35j
- advisories/GHSA-m3jr-cvhj-f35j
- xwiki/xwiki-commons/commit/4a185e0594d90cd4916d60aa60bb4333dc5623b2
- https://jira.xwiki.org/browse/XCOMMONS-1680
- https://jira.xwiki.org/browse/XCOMMONS-2426
- https://jira.xwiki.org/browse/XWIKI-9118